docs: def _load(self, scale=0.001):
          """Load the OLCI relative spectral responses
          """
  
          ncf = Dataset(self.path, 'r')
  
          bandnum = OLCI_BAND_NAMES.index(self.bandname)
          # cam = 0
          # view = 0
          # resp = ncf.variables[
          #     'spectral_response_function'][bandnum, cam, view, :]
          # wvl = ncf.variables[
          #     'spectral_response_function_wavelength'][bandnum, cam, view, :] * scale
          resp = ncf.variables[
              'mean_spectral_response_function'][bandnum, :]
          wvl = ncf.variables[
              'mean_spectral_response_function_wavelength'][bandnum, :] * scale
  
          self.rsr = {'wavelength': wvl, 'response': resp}